lg k8+ x210 ulm unlocked carrier sim issues - Android Q&A, Help & Troubleshooting

I have an lg k8+ model x210ulm that i want to use with cricket. The phone is fully unlocked and will accept any sim from any carrier but has an odd behaviour that wont let me use my own sim.
I bought a feesh sim from cricket and when i put it in and set it up it will register with crickets apn and mobile network settibg. I get data and it shows up in the about network as connected and working. It shows cricket carrier in notificstion and i can get texts and even voice mail. But ........
I cannot use the dialer. Upon connection there is no error toast or anything it just imnedistely hangs up.
I can use my wifes my sons or my friends sims in the phone and after a reboot works perfectly. But when i put mine in it stops.
Also my sim works fine in any other unlocked device or cricket device.
Any clue as to wth is going on

Ok so after talking to lg and really that was frustrating. Why because the rep told me it the phone was carrier locked to us cellular which i knew it wasnt because its advertised as being unlocked and well us cellular put up an advert a few years ago stating that all thier phones are unlocked.
So after that i went ahead and talked to a rep at us cellular who assured me it was unlocked and checked the imei for me and sent me link to the advert about thier phones being unlocked.
Back to lg and got another rep this time who knew a lil about something but not much. Could not tell me any thing though.
Now back to cricket where we tested my girlfriends sim in my phone to which it worked and mine in her phone to which it worked. We put the sims in my aristo 2 and fortune 2 and both sims worked. But when i put my sim back in my my k8+(2018) once again every thing works fine but you cannot make or recieve phone calls.
We also tested the voice mail app and and thier what qualifies as a carrier app and it registers. The sim registers in about phone shows service and is connected. Shows the phone number every thing works.
Just not the phone Dialer app

So is there any one out there at all that has had an issue like this before. Any one that can help me figure out what the problem is. This is so crazy that my sim wont work and every one elses will.
Could it be something i did using dialer codes? Any cLues at akl

So here we are months later and im still having sim issues with my k8+ ulm. I ended up buying a brand new device and i tried my provisioned sim card with it not working but literally every other sim card works fine.
I have switched from cricket to assist wireless now who is run or what ever by sprint and i can get the sim card to work for a couple days before switching it to another phone but the main issue is that i get a error popup stating that the sim card has locked and that i need to power cycle and call customer service.
But i made a ton of changes by adding all the system apps from sprint including sprinthiddenmenu and any other apk that was on the tribute dynasty they came from. I also went through the file system and made any prop changes or any thing else that was needed to enable sprint.
At this point id flash a sprint modem but i cant find a cv1 device provisioned under sprint

Related

[Q] So I've got a T-Mobile sim? (Straight talk)

TL/DR
Can I get data working on my T-mobile sim for straight talk?
Hey guys, I was on the phone with straight talk and I got someone who could finally get an issue fixed, Well kinda.
Let me give you some background, I bought an ATT SIM off ebay for $50(Well so I thought) and it turned out to be a T-Mobile sim.
My phone itself works I can make calls and send texts but my reception is not so great. I had no data or MMS for the past month (Since I got the phone.)
I've called straight talk a few times with no luck But I was able to talk to someone that knew something. Turnes out I have a T-moble sim and my phone can't get data, It will just redirect to androidapi.t-mobile.com/apppack/mvno.html .
He asked me what color my sim was and I thought it was kinda weird but my sim was pink, He said thats a t-mobile sim and the ATT sims are blue, He also told me that stuff like this happens all the time and I would have to re-buy an ATT sim.
I opened a dispute on ebay for my money back but no response yet.
With this being said can I get data working on my T-mobile sim for straight talk or am I ****ed?
Thanks.
Google "straight talk T-Mobile APN settings"
Sent from my SAMSUNG-SGH-I717 using xda premium
Sims are only $15 for straight talk. Hope you got minutes with it. Since it is T-mobile you will have to sim unlock your phone. Either call ATT and get the unlock code, pay a third party, or root your phone and follow crixley's guide http://forum.xda-developers.com/showthread.php?t=2124544 to unlock your phone for free. After the phone is unlocked you may need to enter your APN info and/or install another modem to get full data speed on the T-mobile network.

T-MOBILE is BLOCKING my P769 sim from the network. Fix?

Hi!
Rooted with cmahendra's offline Lelus method (and to anyone who's done that, my hat is off to you).
**SHORT VERSION**
Sim goes into the L9. I get bars that show network availability, however I am not able to connect/make/receive phone calls.
**DETAILED VERSION**
Starts like this: I have my CM rooted Aria that works a-ok as far as the network. Phone message memory getting full all the time and incoming texts bounce back, with no way of knowing who sent them. Can't have that, so I buy a stock L9.
Sim works. I want to have Wi-Fi calling, which is the *only* reason I bought the L9. Wi-fi calling is not working: call up T-Mo and they say I need to give a 911 address and all will be well. Ok, done.
Sim works. But no Wi-Fi calling still. Call up T-Mo and they say "Ohhh! you need a "3G-B" (I don't think that stands for gigabyte) sim card" Ohhh and what's your phone model etc etc. I tell them "it's a no-brand phone I got overseas," they don't need to know the model: they didn't with the CM Aria. They're clicking settings on their screen other side of the phone while we're talking: I can feel it.
Sim *stops* working. Need a working phone, so let L9 aside and get a stock T-mo S2. Same issue, cell network not connecting.
Let me show THEM! Ha! I'll unlock it. Unlocked the S2.
Sim still doesn't work.
Put the Sim back in the rooted/unlocked Aria? Network works.
What settings do they have in their stock phones that disallow network connectivity, because in the CyanogenMod Aria I have the phone fully works, GPS, tether, etc etc. In their stock-from-T-Mobile phones, network = nada.
Thank you for reading.
imadiamond said:
Hi!
Rooted with cmahendra's offline Lelus method (and to anyone who's done that, my hat is off to you).
**SHORT VERSION**
Sim goes into the L9. I get bars that show network availability, however I am not able to connect/make/receive phone calls.
**DETAILED VERSION**
Starts like this: I have my CM rooted Aria that works a-ok as far as the network. Phone message memory getting full all the time and incoming texts bounce back, with no way of knowing who sent them. Can't have that, so I buy a stock L9.
Sim works. I want to have Wi-Fi calling, which is the *only* reason I bought the L9. Wi-fi calling is not working: call up T-Mo and they say I need to give a 911 address and all will be well. Ok, done.
Sim works. But no Wi-Fi calling still. Call up T-Mo and they say "Ohhh! you need a "3G-B" (I don't think that stands for gigabyte) sim card" Ohhh and what's your phone model etc etc. I tell them "it's a no-brand phone I got overseas," they don't need to know the model: they didn't with the CM Aria. They're clicking settings on their screen other side of the phone while we're talking: I can feel it.
Sim *stops* working. Need a working phone, so let L9 aside and get a stock T-mo S2. Same issue, cell network not connecting.
Let me show THEM! Ha! I'll unlock it. Unlocked the S2.
Sim still doesn't work.
Put the Sim back in the rooted/unlocked Aria? Network works.
What settings do they have in their stock phones that disallow network connectivity, because in the CyanogenMod Aria I have the phone fully works, GPS, tether, etc etc. In their stock-from-T-Mobile phones, network = nada.
Thank you for reading.
Sim goes into the L9. I get bars that show network availability, however I am not able to connect/make/recieve phone calls.
Click to expand...
Click to collapse
What the heck are you asking? I don't see any understandable questions in your message. I see you blowing off steam.
It does look like T-Mobile cooked your sim. You may need a new one.
Call them again and ask for "Customer Retention" through the automated system. Those people are more knowledgeable. A new sim should be free if they killed it.
Also, a data plan is not required for wifi-calling.
T-Mobile will give you a SIM regardless. They are always free.
I'm not sure as I am unrooted, but most carriers block network access via files in the EFS folder. This folder is VERY delicate. Anything improperly changed here can render a phone useless. If the SIM works in another device, it's not the SIM. Have you tried a different SIM in your phone?
Also, if you're blocked from network access, when you make a call, you should be prompted with, "We're sorry, but this device has been blocked from network access." If you do not get that prompt, then there is something wrong with the phone itself, be it software or hardware.
Looks like the L9 isn't registering in their system. Where did you buy the phone, blacklisted perhaps?
As for fried your sim, why does it still work in the Aria.
As for 3G-B, you probably need a newer sim, others call it a 4G sim... They should send you one free or pick one up free at a local tmo..
Thanks so far folks...
clockcycle said:
Looks like the L9 isn't registering in their system. Where did you buy the phone, blacklisted perhaps?
As for fried your sim, why does it still work in the Aria.
As for 3G-B, you probably need a newer sim, others call it a 4G sim... They should send you one free or pick one up free at a local tmo..
Click to expand...
Click to collapse
You hit the nail on the head exactly clockcycle, it's not registering. Something *in* the phone is not letting it connect, because my sim works successfully in any and every other unlocked phone I have, blackberrys, GMS world phones, the rooted Aria, but in the two "newer-released phones-- the L9 and the S2-- it doesn't work.
Phones are legit. Craigslist and brand new. Worked perfectly until calling T-Mobile for "support". The sim is fine and the goal is to keep it and not get a new one. It works.
My strong guess is that if I put a different rom that is *not* stock, the phone will work fine. It worked fine in the beginning, until I called them to address the wi-fi calling issue and they started poking around in my account, asking questions and clicking on things. I didn't want to address the wifi-calling issue too much because we could go off on a tangent.
You're right kevev, it didn't look like there was a 100% clear question. A lot of story though, to make sure there aren't 50 posts of did you do this and id you do that. A full story gives everyone the most info they need to understand the situation instead of "yo! my phone is not connecting!" which we see sometimes .
So the more clear question is:
"I am experiencing carrier settings *in* my L9 that are blocking me from connecting fully to the network on a perfectly fine sim card, how can I get around these settings and what/where are they."
I think tribalartgod understands what I'm getting at most completely. The inside-the-phone-settings. When the sim is in the phone I have bars, but when going to make a call the screen message is "emegency only". Can't try different sims in the L9 because of the need to cut the sim down. Also the L9 is not unlocked, just rooted. My guess is a de-bloatwared rom is the fix. Looking for answers from people more knowledgeable than me which is most likely all of you. Thanks again!
Craigslist, new, boxed, doesn't gurranty they aren't blacklisted.
BUT, the Aria uses a miniSim, the L9 uses a microSim. Did you cut your Sim yourself? It might be misaligned, cut wrong.
It's less than $2 to get it unlocked..
It sounds like its IMEI blocked dude. This can happen with various insurance or installment plan scams, even to brand new devices. There are options to still use the phone, but you are hosed on T-mobile. I have a blacklisted L9 because the previous owner quit paying his EIP, but it's unlocked so I used it on an AT&T MVNO connected to an AT&T MicroCell (I wanted WiFi calling too, but that won't happen with a blacklisted IMEI). Until you've gone to T-Mobile's chat support and ask the if the IMEI is clean, writing long posts in this thread is futile, and it is pretty clear everybody in this thread THINKS they know what they are talking about, but nobody has simply asked T-Mobile about the status of the IMEI, which takes two seconds.

Receiving/Making Phone Calls w/out SIM or WIFI!!!

OK this is my first post and it's a weird one. I've always known phones to be useless without a SIM card except for emergency calls. Well today I purchased an S4 on Craigslist. As I was bringing it home, it started to ring. I didn't answer it and shortly after I received a text. There was no SIM in it so I thought it was weird but left it alone.
When I got home, I did a factory reset, put in my old SIM card and activated it to my number. Everything went well - received texts normally, emails worked great, called my husband's phone and worked great until I looked at his phone and saw that the number that popped up wasn't mine, it was the old number. Tried calling my phone with his and went straight to vmail.
Seems like everything activated correctly except for the phone function. Called Verizon and the rep thought it was odd as well since texts went through, but could not figure it out. The rep said the phone is probably tampered with, but I've never heard of anything that could make phone calls without a SIM or wifi.*I reactivated my old phone and left the S4 with no SIM and it's still able to make/receive phone calls!! Weird!
All IMEI numbers match, physical and in About Phone even on box. Phone is not rooted according to Root checker.
Please someone tell me what this is so I can just can undo it and activate my number to the new phone.Thanks
Maybe Verizon or an emergency service was trying to call you... They don't need a sim for that.
The old phone issue is normal every time they port a number or switch a number they [email protected]#$ it up I've had it happen a couple times it on their end not yours
Sent from my SCH-I545 using xda app-developers app
The Sim is only for LTE service, you use built in CDMA radios for calling.
I honestly don't know about the number issue, take it to a corporate Verizon store (the private stores only care about sales not customer service) to have them properly activate it.
Sent from my SCH-I545 using Tapatalk
Sounds like the phone is set to nv-only mode. The vzw s4 is fully operational in this mode but it won't pull your phone info from the sim card.
This is the mode we put the phone in when flashing to carriers like page plus, selectel, etc.
If you want, you can PM me the meid of the device and/or the phone number the calls are being placed with. I'll check to see if it's an active page plus account.

[Q] Gear S =Phone Not Allowed MM#6

Hello Everyone.
I am stumped on this issue. There doesn't seem to be any solutions for me. Here is What's happening, then I will tell you what I know..
Originally an ATT watch. SM-R750A
The IMEI is perfect. Not black listed at all. (Verified with ATT,SAMSUNG, and TMOBILE)
It is unlocked by ATT - I received the code and used it with the Tmobile Sim card inside when prompted. Success.
ATT Sim cards work perfectly,and with 4G!! When my Tmobile Sim goes in there, it only allows Emergency calls.
The APN settings are automatically populated. Verified to be correct with Tmobile. Basically, everything is fine on their end..
I am getting the run around from all 3 sources. They point the finger at each other.
Example:
Tmobile :"ATT did not unlock it completely, call them and ask for it to be fully unlocked."
ATT: "Once we gave you the code, our hands are tied. Call samsung, they may be able to complete your request.."
Samsung: "This is a service/network issue. Contact who ever your sim card has service with.."
Please help me, I have tried everything I can think of.
I researched all over the internet.. There are no working solutions anywhere!!!
I even Oden flashed the Official Firmware from ATT to Tmobile, so now my Model # is SM-R750T. I get the same errors. Att sim cards still work perfectly.
:crying:
I added photos of a menu I found on the device.. I dont know what this means..
I can draw conclusions, but I still need help..
Also, I have had the Tmobile Sim card replaced twice..
If someone could help find a solution, this will help a LOT people!
Thank You AHEAD of time.
did you flash the entire firmware package?
I only flashed official firmware from ATT to TMOBILE.. That was all. If there are further steps please let me know.
I stopped at the firmware install because I thought anything extra would have just been for customizing themes, etc..
animegamemaster said:
Hello Everyone.
I am stumped on this issue. There doesn't seem to be any solutions for me. Here is What's happening, then I will tell you what I know..
Originally an ATT watch. SM-R750A
The IMEI is perfect. Not black listed at all. (Verified with ATT,SAMSUNG, and TMOBILE)
It is unlocked by ATT - I received the code and used it with the Tmobile Sim card inside when prompted. Success.
ATT Sim cards work perfectly,and with 4G!! When my Tmobile Sim goes in there, it only allows Emergency calls.
The APN settings are automatically populated. Verified to be correct with Tmobile. Basically, everything is fine on their end..
I am getting the run around from all 3 sources. They point the finger at each other.
Example:
Tmobile :"ATT did not unlock it completely, call them and ask for it to be fully unlocked."
ATT: "Once we gave you the code, our hands are tied. Call samsung, they may be able to complete your request.."
Samsung: "This is a service/network issue. Contact who ever your sim card has service with.."
Please help me, I have tried everything I can think of.
I researched all over the internet.. There are no working solutions anywhere!!!
I even Oden flashed the Official Firmware from ATT to Tmobile, so now my Model # is SM-R750T. I get the same errors. Att sim cards still work perfectly.
:crying:
I added photos of a menu I found on the device.. I dont know what this means..
I can draw conclusions, but I still need help..
Also, I have had the Tmobile Sim card replaced twice..
If someone could help find a solution, this will help a LOT people!
Thank You AHEAD of time.
Click to expand...
Click to collapse
Tmobile :"ATT did not unlock it completely, call them and ask for it to be fully unlocked."
From my understanding, there are no levels of unlock permissions. Once a device is unlocked, it's done on all levels and access.
It is unlocked by ATT - I received the code and used it with the Tmobile Sim card inside when prompted. Success.
The unlock code needs to be entered on device while connected to the ATT network...not TM's. My initial suggestion is kindly call back ATT and with the correct IMEI/ATT Sim inserted, enter unlock code again. You may need to flash back to xxxA first.
My thought here is the phone isn't unlocked according to ATT's server's Device ID data...when you reestablished connection with ATT, it locked the device again.
[Q]
You said that you got the unlock code from ATT, with TM Sim inserted, and it was a success....
Why did you go back to the ATT Sim again if you had it working?
animegamemaster said:
Hello Everyone.
I am stumped on this issue. There doesn't seem to be any solutions for me. Here is What's happening, then I will tell you what I know..
Originally an ATT watch. SM-R750A
The IMEI is perfect. Not black listed at all. (Verified with ATT,SAMSUNG, and TMOBILE)
It is unlocked by ATT - I received the code and used it with the Tmobile Sim card inside when prompted. Success.
ATT Sim cards work perfectly,and with 4G!! When my Tmobile Sim goes in there, it only allows Emergency calls.
The APN settings are automatically populated. Verified to be correct with Tmobile. Basically, everything is fine on their end..
I am getting the run around from all 3 sources. They point the finger at each other.
Example:
Tmobile :"ATT did not unlock it completely, call them and ask for it to be fully unlocked."
ATT: "Once we gave you the code, our hands are tied. Call samsung, they may be able to complete your request.."
Samsung: "This is a service/network issue. Contact who ever your sim card has service with.."
Please help me, I have tried everything I can think of.
I researched all over the internet.. There are no working solutions anywhere!!!
I even Oden flashed the Official Firmware from ATT to Tmobile, so now my Model # is SM-R750T. I get the same errors. Att sim cards still work perfectly.
:crying:
I added photos of a menu I found on the device.. I dont know what this means..
I can draw conclusions, but I still need help..
Also, I have had the Tmobile Sim card replaced twice..
If someone could help find a solution, this will help a LOT people!
Thank You AHEAD of time.
Click to expand...
Click to collapse
Try this. Go to phone dialer, type in *#2263# , dont hit call , just wait for the menu. When it comes up, select GSM band preference and if its an option, choose GSM 1800. Then swipe down to exit.
Sent from my SAMSUNG-SM-N910A using XDA Free mobile app
mghtymse007 said:
Tmobile :"ATT did not unlock it completely, call them and ask for it to be fully unlocked."
From my understanding, there are no levels of unlock permissions. Once a device is unlocked, it's done on all levels and access.
It is unlocked by ATT - I received the code and used it with the Tmobile Sim card inside when prompted. Success.
The unlock code needs to be entered on device while connected to the ATT network...not TM's. My initial suggestion is kindly call back ATT and with the correct IMEI/ATT Sim inserted, enter unlock code again. You may need to flash back to xxxA first.
My thought here is the phone isn't unlocked according to ATT's server's Device ID data...when you reestablished connection with ATT, it locked the device again.
[Q]
You said that you got the unlock code from ATT, with TM Sim inserted, and it was a success....
Why did you go back to the ATT Sim again if you had it working?
Click to expand...
Click to collapse
The unlock code worked. I was not prompted to enter another unlock code. I received success notification. I immediately got the error code that you see in the pictures. Could not dial out. So i went to ATT store for some hands on troubleshooting. But I will try to use the sim card idea you mentioned. I will come back with an update.
vacortina said:
Try this. Go to phone dialer, type in *#2263# , dont hit call , just wait for the menu. When it comes up, select GSM band preference and if its an option, choose GSM 1800. Then swipe down to exit.
Sent from my SAMSUNG-SM-N910A using XDA Free mobile app
Click to expand...
Click to collapse
This is a 'no-go' as well.. I will flash my firmware back to ATT and try it again.
Edit:
No, this did not work as well..
animegamemaster said:
The unlock code worked. I was not prompted to enter another unlock code. I received success notification. I immediately got the error code that you see in the pictures. Could not dial out. So i went to ATT store for some hands on troubleshooting. But I will try to use the sim card idea you mentioned. I will come back with an update.
Click to expand...
Click to collapse
The same here. I'm from Vietnam. My boss from USA visited Vietnam office and gifted me a T-mobile Gear S with the unlock code from T-mobile. Before unlocking the network, i upgrade it with the latest firmware from T-mobile (R750TUVU1A07). I then inserted a VN carrier SIM and did follow T-mobile guide as below:
1.Insert a Non-T-Mobile SIM & turn the Gear S ON.
2.The Gear S will automatically prompt you to enter the unlock code.
3.Tap in the unlock code provided by T-Mobile and click OK.
Note: The device should display code accepted
Click to expand...
Click to collapse
After i receive the successful message, i still cant make call or send message. It keep saying that "Mobile network is not available". I tried with 3 nano sim cards from 3 biggest carriers in VN but there is no luck. (These sim cards work well on the iPhone 5).
BTW, the GPS also didn't work, even before or after unlocking with the code. It keep saying "GPS signal too weak. Please connect the Gear to mobile device via Bluetooth" (or something like that).
snowinjune said:
The same here. I'm from Vietnam. My boss from USA visited Vietnam office and gifted me a T-mobile Gear S with the unlock code from T-mobile. Before unlocking the network, i upgrade it with the latest firmware from T-mobile (R750TUVU1A07). I then inserted a VN carrier SIM and did follow T-mobile guide as below:
After i receive the successful message, i still cant make call or send message. It keep saying that "Mobile network is not available". I tried with 3 nano sim cards from 3 biggest carriers in VN but there is no luck. (These sim cards work well on the iPhone 5).
BTW, the GPS also didn't work, even before or after unlocking with the code. It keep saying "GPS signal too weak. Please connect the Gear to mobile device via Bluetooth" (or something like that).
Click to expand...
Click to collapse
You most likely will not be able to use a North American S outside the US. It has nothing to do with the software...the frequency bands are different and hardcoded. You may want to check and see what bands are used by the providers in VN for cellular ie: 2G, 3G, etc and compare those to what US/Sprint uses.
I have the same issues with the GPS. Even when I'm outside, in an open area I can't even get the weather app to update. Not sure how many people have this issue, but it doesn't seem to be a topic of discussion on XDA.
snowinjune said:
The same here. I'm from Vietnam. My boss from USA visited Vietnam office and gifted me a T-mobile Gear S with the unlock code from T-mobile. Before unlocking the network, i upgrade it with the latest firmware from T-mobile (R750TUVU1A07). I then inserted a VN carrier SIM and did follow T-mobile guide as below:
After i receive the successful message, i still cant make call or send message. It keep saying that "Mobile network is not available". I tried with 3 nano sim cards from 3 biggest carriers in VN but there is no luck. (These sim cards work well on the iPhone 5).
BTW, the GPS also didn't work, even before or after unlocking with the code. It keep saying "GPS signal too weak. Please connect the Gear to mobile device via Bluetooth" (or something like that).
Click to expand...
Click to collapse
---------- Post added at 02:15 PM ---------- Previous post was at 02:12 PM ----------
animegamemaster said:
This is a 'no-go' as well.. I will flash my firmware back to ATT and try it again.
Edit:
No, this did not work as well..
Click to expand...
Click to collapse
Have you tried rooting?
http://forum.xda-developers.com/showthread.php?t=2977581
Thanks to cipherswitch
This is from "CELLUNLOCKER" where I got my unlock code...before it was free...lol....... When I click on the t mobile for network....I get "registered to networkk" popup with my ATT GS. When I call a number I get the tmobile cust servc help line...... since I am not a tmobile cust.
I cannot remember which method I used....but I can go with att or tmobile sims with no issues. Right now I have H20 as my carrier, on the ATT network...but at least I know I can go to the Tmobile network or carriers anytime
How to enter unlock codes on all Samsung models
Different phones have different Unlock Code Input Instructions, Try the following Instructions in order:
Note: Non Accepted Simcard is any simcard not from the original provider
Method #1 Insert a Non accepted simcard in your phone and power on. Once finished loading your phone will ask you to enter a code, enter the Unlock Code
OR
Method #2 (NOT applicable for newer Samsung phones, ie. Galaxy S3, S4, S5, Note 2, Note 3, etc)
Go to the dial screen on your phone as if you are going to make a call and press: #7465625*638*UNLOCKCODE# (8 digit unlock code)
OR
Method #3 (NOT applicable for newer Samsung phones, ie. Galaxy S3, S4, S5, Note 2, Note 3, etc)
Go to the dial screen on your phone as if you are going to make a call and press: #0111*UNLOCKCODE# (8 digit unlock code)
OR
Method #4 (NOT applicable for newer Samsung phones, ie. Galaxy S3, S4, S5, Note 2, Note 3, etc)
Go to the dial screen on your phone as if you are going to make a call and press #7465625*638*# Once prompted for code, enter the 8 digit Unlock Code.
When this method is used for newer Samsung phones, it will say "unsuccessful" regardless of the phone being unlocked or not.
Phone Not Allowed MM#6 Tmobile- A clue to problem?
I also have the same problem...it is frustrating.
i have an unlocked AT&T Gear S ( unlocked thru one of the unlock ebay sites. it seemed to go well, and worked)
i setup account with Tmobile, and it worked, i have had it about 2 months, all OK, until..
i took out SIM to test with my unlocked IPHONE 6+, (i have been thinking of switching all my phones to Tmobile) it also worked OK,
Then i swicthed it back into the Gear S, and the trouble started (unless it was a conincidence),
'Phone not allowed MM#6', it tried everything.
1. reset Gear
2.rebooted thru the gear boot menu
-i called Tmobile, they did not have answer,m they asked me to try a new SIM, which i did online and updated account with new SIM,
same problem.
3.Tmo said maybe not complety unlocked to contact AT&T but i doubted this,
4. I tried a freinds SIM from his Iphone 6+ (on Tmo) it worked great in my Gear Sm and my 'unlocked Ipphone 6'
5. i tried my Gear S SIM in my Iphone, message poped up 'Phone not allowed' (this time no MM#6)
6. called Tmo again (maybe 3rd time) suggested another new SIM card, they everything on there end looks fine, they checked imei, sim card etc, all OK.
i told them from what i have read the forums mentioned a network problem, not a phone problem.
They connected with Samsung, they said they can try reflashing the Gear S, if i send it in to them,
7. i called Tmo again, and i spoke one rep who , GAVE ME A CLUE TO PROBLEM.. he found a note concerning the Gear S,
it said if the user puts the Gear S SIM cards (wiith the 'wearable plan') into another phone, it will block the account until the user reinstalls SIM into Gear S.
8. if this the problem, iit is not reseting itself when SIM is back in Gear S.
9. Not sure what to do next.
the last Tmo rep told to go into Tmo store, and they will try another new SIM, and ask them to try new SIM and my in anoother Gear S, but it seems many tmo stores dont have Gear S on hand, only display it am checking.
10. One idea may be to close the whole account and open new account for the Gear S.
did anybody have luck with this problem?
perdikoylis said:
I also have the same problem...it is frustrating.
i have an unlocked AT&T Gear S ( unlocked thru one of the unlock ebay sites. it seemed to go well, and worked)
i setup account with Tmobile, and it worked, i have had it about 2 months, all OK, until..
i took out SIM to test with my unlocked IPHONE 6+, (i have been thinking of switching all my phones to Tmobile) it also worked OK,
Then i swicthed it back into the Gear S, and the trouble started (unless it was a conincidence),
'Phone not allowed MM#6', it tried everything.
1. reset Gear
2.rebooted thru the gear boot menu
-i called Tmobile, they did not have answer,m they asked me to try a new SIM, which i did online and updated account with new SIM,
same problem.
3.Tmo said maybe not complety unlocked to contact AT&T but i doubted this,
4. I tried a freinds SIM from his Iphone 6+ (on Tmo) it worked great in my Gear Sm and my 'unlocked Ipphone 6'
5. i tried my Gear S SIM in my Iphone, message poped up 'Phone not allowed' (this time no MM#6)
6. called Tmo again (maybe 3rd time) suggested another new SIM card, they everything on there end looks fine, they checked imei, sim card etc, all OK.
i told them from what i have read the forums mentioned a network problem, not a phone problem.
They connected with Samsung, they said they can try reflashing the Gear S, if i send it in to them,
7. i called Tmo again, and i spoke one rep who , GAVE ME A CLUE TO PROBLEM.. he found a note concerning the Gear S,
it said if the user puts the Gear S SIM cards (wiith the 'wearable plan') into another phone, it will block the account until the user reinstalls SIM into Gear S.
8. if this the problem, iit is not reseting itself when SIM is back in Gear S.
9. Not sure what to do next.
the last Tmo rep told to go into Tmo store, and they will try another new SIM, and ask them to try new SIM and my in anoother Gear S, but it seems many tmo stores dont have Gear S on hand, only display it am checking.
10. One idea may be to close the whole account and open new account for the Gear S.
did anybody have luck with this problem?
Click to expand...
Click to collapse
Call tmo back and have them make sure you have the right data plan I had the same problem and mine was on a tablet data plan not mobile/watch plan
I am experiencing a similar issue with TMobile. My thread is in here, http://forum.xda-developers.com/gear-s/help/gear-s-longer-able-to-register-tmobiles-t3040635
I have the factory unlocked international version, SM-R750W, and several people here said it wouldn't work. It worked perfectly for a day, then nothing. New SIM, it worked perfectly again for maybe 5 minutes.
HagbardCelineII said:
I am experiencing a similar issue with TMobile. My thread is in here, http://forum.xda-developers.com/gear-s/help/gear-s-longer-able-to-register-tmobiles-t3040635
I have the factory unlocked international version, SM-R750W, and several people here said it wouldn't work. It worked perfectly for a day, then nothing. New SIM, it worked perfectly again for maybe 5 minutes.
Click to expand...
Click to collapse
Still no luck, but maybe a couple more clues;
1. As the tech support advised, I went to a Tmo store, and they swapped the nano sim , no help.
2. I put in a sim from my friends tmo iPhone. It seemed great.
3. I called tech support back, they escalated problem to the engineering dept,
Said it may take 2 days to hear back...... So far no luck, please let me know if you have better results.
(I did check the plan online and with support to be sure it was correct.- the wearable / watch plan)
I feel it has something to do with there network 'rejecting' my imeo, but support checked that several times, as said it is correct.
perdikoylis said:
Still no luck, but maybe a couple more clues;
1. As the tech support advised, I went to a Tmo store, and they swapped the nano sim , no help.
2. I put in a sim from my friends tmo iPhone. It seemed great.
3. I called tech support back, they escalated problem to the engineering dept,
Said it may take 2 days to hear back...... So far no luck, please let me know if you have better results.
(I did check the plan online and with support to be sure it was correct.- the wearable / watch plan)
I feel it has something to do with there network 'rejecting' my imeo, but support checked that several times, as said it is correct.
Click to expand...
Click to collapse
They escalated my situation as soon as I called them on Tuesday and told me 3 days. Nothing yet.
Have you used the Tmobile IMEI check? http://www.t-mobile.com/verifyIMEI.aspx
I just tried it and it doesn't recognize my IMEI....But if that was going to be a problem, shouldn't that have meant it would never work? I can't think of any reason it would work for a day before they shut it off.
I had same result "did not recognize" with there Imei checker, further, the support reps checked several times and said it is Ok, My gear s is an unlocked AT&T, it did work for the first 2 months (until I removed sim to test in my iPhone ( I was considering switching all my phones to Tmo) Maybe coincidence? + But with a friends sim (from his iPhone ) it worked immediately , it even populated the Apn etc settings, but i did not leave on more than 1-2 minutes to test.
When I put my sim back in, it does not register, it does even show phone number, says:
"Phone not allowed MM#6" and emergency calls only.
I had this same issue come up. The way I solved it was to close out the account for my phone number tied to the watch wearable plan. And then I created a new phone account for the wearable plan with a new number. And got a new sim card from T-Mobile at the time of creating the new wearable plan / number. It seems that the phone number that was previously tied to my galaxy gear s was not blacklisted, but the services were limited on it because I had taken the sim card out of the gear s watch and put it into a cell phone to test if there was service on it. So that flagged the wearable phone number account like I was trying to steal data/phone service from T-Mobile by using the only $15 / month plan on an actual phone. Like said above, the services are supposed to be restored once you put the sim back into the watch, but there is a bug with T-Mobile's service in doing so. So in the end, I closed out the "flagged" account, opened a new account and will never put the sim card into a phone again in the future.
same the issue
snowinjune said:
The same here. I'm from Vietnam. My boss from USA visited Vietnam office and gifted me a T-mobile Gear S with the unlock code from T-mobile. Before unlocking the network, i upgrade it with the latest firmware from T-mobile (R750TUVU1A07). I then inserted a VN carrier SIM and did follow T-mobile guide as below:
After i receive the successful message, i still cant make call or send message. It keep saying that "Mobile network is not available". I tried with 3 nano sim cards from 3 biggest carriers in VN but there is no luck. (These sim cards work well on the iPhone 5).
BTW, the GPS also didn't work, even before or after unlocking with the code. It keep saying "GPS signal too weak. Please connect the Gear to mobile device via Bluetooth" (or something like that).
Click to expand...
Click to collapse
Hi...I have same the issue...now are you solve? You can help me this issue?...thank you
A good looking digital watch
zztoine said:
Hi...I have same the issue...now are you solve? You can help me this issue?...thank you
Click to expand...
Click to collapse
No, i follow this guide to try some features of the Gear S. But my phone become sluggish, and the GPS still not work.
http://forum.xda-developers.com/gea...ll-gear-manager-connect-t2934307/post60592795
So, right now, the Gear S is just a digital watch to me, ha ha.
The error is specifically a sim/network error unfortunately and more importantly this;
9 out of 10 times MM6 error means the phone has been reported lost/stolen and the IMEI has been network blocked.
Here are a few options that could be causing most of the issues I have read;
At&t is NOT open and a fan of allowing devices outside their network. Therefore its possible your device is literally reported as lost/and or locked to at&t and they dont want it on T-Mobile. And your best bet is to raise hell threating an investigation by the FCC.
At&t re-locked your device when att sim is put in.

SM-G925V on MetroPCS (No Service)

Recently purchased a G925v with a broken charge port. After repair I noticed that it had a SimpleMobile SIM inserted which in fact still worked for calls+text, cool still works. So I try inserting my Metropcs SIM which I have been using with my G900v for over a year and am receiving (NO SERVICE). So i went to the Metro store and the clerk proceeds to check the IMEI which returns clean as in fact the verizon service was properly disconnected. From here he says ok we set you up and starts typing, 2-3 minutes pass and I hear "Oh!" It seems this IMEI is connected to another metropcs account.
At this point I'm confused, how did the phones IMEI have anything to do with the SIM card showing no service ?
And since I know the phone is factory unlocked and also working with a SimpleMobile SIM why is my Metropcs SIM not working ?

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